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一、要及时进行中耕除草。玉米大行间点种豆类或豆科绿肥的地块要深锄;没间种的要深刨、松土通风透气,以利提高地温促进根系生长发育。二、合理浇水追肥。单种覆膜玉米追肥,采取前重、中轻、后补的方法。6月上中旬喇叭期,浇头水,保持土壤表层湿润。结合浇头水重施肥,每亩追施碳铵40—50公斤或尿素15公斤或硝铵20公斤;7月上旬吐丝灌浆前浇二水时每亩追施碳铵10—15公斤,弱苗追施25公
First, we must promptly cultivate weeds. Maize Dahon point between legumes or legumes green manure to deep hoe plots; not to the deep shaver, loose soil ventilation, in order to facilitate the increase in temperature to promote root growth and development. Second, rational water top dressing. Single coated corn top dressing, before taking heavy, light, after the fill method. June mid-trumpet period, topping water, keep the soil surface moist. Combined with toppings and fertilizers, topdressing 40-50 kg of ammonium per acre or 15 kg of urea or ammonium nitrate 20 kg; early July before pouring grout pouring two acres per acre topdressing ammonium bicarbonate 10-15 kg, weak seedlings Top 25 public